MFS Massachusetts Investors Growth Stock Fund Class B MIGBX

Medalist Rating as of | See MFS Investment Hub
  • NAV / 1-Day Return 28.83  /  −1.87 %
  • Total Assets 8.9B
  • Adj. Expense Ratio
    1.460%
  • Expense Ratio 1.450%
  • Distribution Fee Level Average
  • Share Class Type Deferred Load
  • Category Large Growth
  • Investment Style Large Blend
  • Min. Initial Investment 1,000
  • Status Closed
  • TTM Yield 0.00
  • Turnover 21%

USD | NAV as of Jun 11, 2026 | 1-Day Return as of Jun 11, 2026, 1:35 AM GMT+0

Morningstar’s Analysis MIGBX

Will MIGBX outperform in the future?

Get our overall rating based on a fundamental assessment of the pillars below.

Continues to face challenging environment.

Principal Jack Shannon

Jack Shannon

Principal

Summary

Patience and a risk-first approach set Massachusetts Investors Growth apart. In periods where the market chases momentum, lower quality, or continues to coalesce in the largest companies, this strategy can look like a laggard, as it has recently. Over a full market cycle, though, this strategy’s focus on owning durable—but still growing—businesses should pay off for investors, as it should prove resilient when markets get jittery.

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Portfolio Holdings MIGBX

  • Current Portfolio Date
  • Equity Holdings
  • Bond Holdings
  • Other Holdings
  • % Assets in Top 10 Holdings 51.6
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

NVIDIA Corp

12.30 1B
Technology

Microsoft Corp

10.35 988M
Technology

Alphabet Inc Class A

6.04 577M
Communication Services

Apple Inc

4.67 446M
Technology

Taiwan Semiconductor Manufacturing Co Ltd ADR

3.96 378M
Technology

Visa Inc Class A

3.59 343M
Financial Services

Amphenol Corp Class A

3.35 320M
Technology

Moodys Corp

2.49 237M
Financial Services

Aon PLC Class A

2.46 235M
Financial Services

Amazon.com Inc

2.44 233M
Consumer Cyclical

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